1
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

The magnetic flux through a coil of resistance '$$R$$' changes by an amount '$$\Delta \phi$$' in time '$$\Delta \mathrm{t}$$'. The total quantity of induced electric charge '$$\mathrm{Q}$$' is

A
$$-\frac{\Delta \phi}{\Delta \mathrm{t}}+\mathrm{R}$$
B
$$\frac{\Delta \phi}{\Delta \mathrm{t}} \times \mathrm{R}$$
C
$$\frac{\Delta \phi}{\mathrm{R}}$$
D
$$\frac{\Delta \phi}{\Delta t}$$
2
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A body weighs $$500 \mathrm{~N}$$ on the surface of the earth. At what distance below the surface of the earth it weighs $$250 \mathrm{~N}$$ ? (Radius of earth, $$\mathrm{R}=6400 \mathrm{~km}$$ )

A
6400 km
B
800 km
C
1600 km
D
3200 km
3
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

Three discs $$\mathrm{x}, \mathrm{y}$$ and $$\mathrm{z}$$ having radii $$2 \mathrm{~m}, 3 \mathrm{~m}$$ and $$6 \mathrm{~m}$$ respectively are coated on outer surfaces. The wavelength corresponding to maximum intensity are $$300 \mathrm{~nm}, 400 \mathrm{~nm}$$ and $$500 \mathrm{~nm}$$ respectively. If $$\mathrm{P}_{\mathrm{x}}, \mathrm{P}_{\mathrm{y}}$$ and $$\mathrm{P}_{\mathrm{z}}$$ are power radiated by them respectively then

A
$$\mathrm{P}_{\mathrm{X}}$$ is maximum
B
$$\mathrm{P}_{\mathrm{Z}}$$ is maximum
C
$$\mathrm{P}_{\mathrm{y}}$$ is maximum
D
$$\mathrm{P_x=P_y=P_z}$$
4
MHT CET 2022 11th August Evening Shift
MCQ (Single Correct Answer)
+1
-0

A stationary wave is represented by $$\mathrm{y}=10 \sin \left(\frac{\pi \mathrm{x}}{4}\right) \cos (20 \pi \mathrm{t})$$ where $$\mathrm{x}$$ and $$\mathrm{y}$$ are in $$\mathrm{cm}$$ and $$\mathrm{t}$$ in second. The distance between two consecutive nodes is

A
1 cm
B
8 cm
C
4 cm
D
2 cm
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